All Things Distributed
NOVEMBER 22, 2016
Machine learning is playing an increasingly important role in many areas of our businesses and our lives and is being employed in a range of computing tasks where programming explicit algorithms is infeasible. At Amazon, machine learning has been key to many of our business processes, from recommendations to fraud detection, from inventory levels to book classification to abusive review detection.
DZone
JUNE 16, 2016
In this article I am going to show you two approaches to load balance JAXRS web services without an Apache or a hardware load balancer. The full code is available on GitHub. CXF provides clustering strategies which can be used for configuring a load balancer which has already been discussed here. However, load balancing the JAXRS requires a little more effort, which I have described in this article.
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Alex Podelko
OCTOBER 28, 2016
I am looking forward to share my thoughts on ‘Reinventing Performance Testing’ at the imPACt performance and capacity conference by CMG held on November 7-10, 2016 in La Jolla, CA. I decided to publish a few parts here to see if anything triggers a discussion. It would be published as separate posts: – Introduction (a short teaser). – Cloud. – Agile. – Continuous Integration. – New Architectures.
Uber Engineering
NOVEMBER 1, 2016
Uber Engineering’s Schemaless storage system powers some of the biggest services at Uber, such as Mezzanine. Schemaless is a scalable and highly available datastore on top of MySQL ¹ clusters. Managing these clusters was fairly easy when we had … The post Dockerizing MySQL at Uber Engineering appeared first on Uber Engineering Blog.
The Polyglot Developer
JUNE 17, 2016
As some of you may know, I have a hoarding problem. I am hoarding Raspberry Pi microcomputers. In my personal collection I have one from each generation, making four standard units. Well, I recently picked up another unit, but this time a Raspberry Pi Zero. These things are about the size of a nine volt battery, but pack some serious punch. The problem is they are incredibly rare because they retail for only $5.00.
Speed Curve
SEPTEMBER 21, 2016
Often when monitoring and debugging site performance we focus on network activity and individual resources, but what about the CPU? As more and more sites switch to using large Javascript frameworks and manipulating the page using Javascript, the execution time this code takes and the available CPU can instead become the performance bottleneck. CPU usage for all Chrome tests.
Professor Beekums
DECEMBER 11, 2016
UPDATE 2017-01-01: This post has a follow up. Most engineering organizations will have to answer the question: “What makes a software developer a senior developer?” This is a challenging question because it is extremely subjective. Search for the answer on the internet and you will get many different answers. Some will contain criteria that are also subjective themselves which adds additional difficulty to the question.
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Allen Holub
JULY 8, 2016
Estimates are waste. Not only are they not necessary, but they introduce dysfunction into the team. We should really just stop doing them. This thinking comes from the #NoEstimates movement (of which I’m a card-carrying member), which came onto the scene a couple years ago when @WoodyZuill created the #NoEstimates hash tag on Twitter.
Kovair
FEBRUARY 8, 2016
Introduction In the first and second part of our three-blog series in ‘Testing’ category, we have already discussed about the changing face of testing, importance. The post Importance of Real-Time Reports and Traceability in Software Testing appeared first on Kovair Blog.
Nick Desaulniers
MAY 15, 2016
Recently, there some was some confusion between myself and a coworker over the definition of a “word.” I’m currently working on a blog post about data alignment and figured it would be good to clarify some things now, that we can refer to later. Having studied computer engineering and being quite fond of processor design, when I think of a “word,” I think of the number of bits wide a processor’s general purpose registers are (aka word size ).
All Things Distributed
DECEMBER 13, 2016
In November 2015, Amazon Web Services announced that it would launch a new AWS infrastructure region in the United Kingdom. Today, I'm happy to announce that the AWS Europe (London) Region, our 16th technology infrastructure region globally, is now generally available for use by customers worldwide. UK companies are using AWS to innovate across diverse industries, such as energy, manufacturing, medicaments, retail, media, and financial services and the UK is home to some of the world's m
DZone
MAY 11, 2016
As there are more and more things being connected to the Internet, necessarily there is a need to integrate these devices together. We have some great opportunities to be really productive in partitioning huge problems into small and even smaller and solve them one by one. We can easily develop a simple service, put it into a Docker container and deploy it to any cloud solution.
Alex Podelko
OCTOBER 20, 2016
I am looking forward to share my thoughts on ‘Reinventing Performance Testing’ at the imPACt performance and capacity conference by CMG held on November 7-10, 2016 in La Jolla, CA. I decided to publish a few parts here to see if anything triggers a discussion. It would be published as separate posts: – Introduction (a short teaser). – Cloud. – Agile. – Continuous Integration.
Uber Engineering
JULY 26, 2016
By Evan Klitzke. Introduction. The early architecture of Uber consisted of a monolithic backend application written in Python that used Postgres for data persistence. Since that time, the architecture of Uber has changed significantly, to a model of microservices and … The post Why Uber Engineering Switched from Postgres to MySQL appeared first on Uber Engineering Blog.
The Polyglot Developer
MAY 27, 2016
As many of you know, I had been using Apache Cordova based frameworks such as Ionic Framework for a long time. They are convenient and easy to use when it comes to rapidly developing cross platform applications. The problem with using Apache Cordova frameworks such as PhoneGap, Ionic Framework and Onsen UI is the performance limitations that come with them, particularly because of their use of the platform web view.
Speed Curve
SEPTEMBER 11, 2016
Progressive Web Apps (PWAs) combine the best and newest features of the Web to deliver an experience that rivals native applications on mobile. Even better, they work on desktop, too. In fact, they work everywhere that the Web works! "Ah", you say, "that's not true! They require features that don't exist in all browsers." Because PWAs are "progressive", they can adapt to older browsers to deliver the best experience possible given the features that are available.
Professor Beekums
DECEMBER 18, 2016
UPDATE 2016-12-25: This post has an important follow-up. At some point in every software developer’s career, we work with someone who does negative work. The notion of negative work may sound a little strange. Someone can do no work by just… not working. How does negative work happen? One example of this is an awful developer that was once at the same company as me.
Testlodge
JANUARY 28, 2016
Sometimes two is better than one. In pair testing, two people sit behind one machine to test the software. One person controls the mouse and keyboard. The other person asks questions, discusses test scenarios, and takes notes. Pair testing is a type of exploratory testing, where two team members discuss and share ideas and scenarios around the software.
Tim Kadlec
OCTOBER 4, 2016
One of the very first projects I ever worked on as a professional was a relatively large site with tons of legacy code. Legacy code brings many headaches. My favorite example was opening a few pages to find that these pages used not one, not two, but three different JavaScript frameworks! The developers were overworked and the site had never gotten enough budget to give it the rebuild it needed.
Kovair
JUNE 16, 2016
Today, the entire software development process is going through a cultural shift from the traditional Waterfall model to the modern agile methodology. With this paradigm. The post 5 Major Criteria for Selecting a Testing Tool appeared first on Kovair Blog.
Nick Desaulniers
MAY 30, 2016
This post is a follow up to my previous blog post about word size. Three C/C++ programmers walk into a bar. One argues that sizeof(void*) is equivalent to sizeof(long), one argues that sizeof(void*) is equivalent to sizeof(int), and the third argues it’s sizeof(long long). Simultaneously, they’re all right, but they’re also all wrong (and need a lesson about portable C code).
All Things Distributed
DECEMBER 1, 2016
In my keynote at AWS re:Invent today, I announced 13 new features and services (in addition to the 15 we announced yesterday). My favorite parts of James Bond movies is are where 007 gets to visit Q to pick up and learn about new tools of the trade: super-powered tools with special features which that he can use to complete his missions, and, in some cases, get out of some nasty scrapes.
O'Reilly Software
JUNE 17, 2016
I was looking to set up the mutt email client on my Ubuntu box to go through my gmail account. Since it took me a couple of hours to figure out, and I’ll probably forget by the time I need to know again, I figure I’d post my steps here. I’m on Ubuntu 16.
Alex Podelko
OCTOBER 18, 2016
I am looking forward to share my thoughts on ‘Reinventing Performance Testing’ at the imPACt performance and capacity conference by CMG held on November 7-10, 2016 in La Jolla, CA. I decided to publish a few parts here to see if anything triggers a discussion. It would be published as separate posts: – Introduction (a short teaser). – Cloud. – Agile.
Uber Engineering
MAY 17, 2016
Our last article on Uber for Business (U4B) discussed implementing our ride profiles feature. Today, we want to share more insight into the kind of technical challenges we’re solving. Just because our mission is to improve businesses’ experiences doesn’t … The post How Uber for Business Engineering Verifies Your Ride in Real Time appeared first on Uber Engineering Blog.
The Polyglot Developer
NOVEMBER 4, 2016
Continuous integration (CI) and continuous deployment (CD) are terms that I hear thrown around quite frequently. I’ve been a software developer for a long time, but it is only recently that I’ve welcomed these terms into my life. CI and CD is the automated process of running various tasks such as unit testing or building a version controlled project.
Speed Curve
MAY 2, 2016
SpeedCurve’s sweet spot is the intersection of design and performance - where the user experience lives. Other monitoring services focus on network behavior and the mechanics of the browser. Yet users rarely complain that “the DNS lookups are too slow” or “the load event fired late” Instead, users get frustrated when they have to wait for the content they care about to appear on the screen.
Professor Beekums
DECEMBER 4, 2016
Developer/coding bootcamps are incredibly popular right now. That should not be a surprise to anyone. Software development is an incredibly lucrative field. There is a much greater demand for talent than there is supply. I’ve seen that from both the hiring side and the job applicant side. It makes sense that a lot of folks out there are interested in becoming software developers.
Testlodge
MARCH 30, 2016
The software development life cycle is complex. Among the many moving pieces of developing software is the process of testing. Testing ensures quality in the product and proves the code is functioning as expected and as needed. There are many different testing activities that should occur within the process of building software. User Acceptance Testing, or UAT, is just one of the various types of testing involved in the software development life cycle, and most commonly, it is the final testing
Tim Kadlec
APRIL 14, 2016
I head out of the airport in San Francisco and grab a taxi. I consider myself an outgoing and social person, but I’ve just spent six hours or so crammed next to a bunch of strangers in a combination of airports and planes. All I want to do right now is hang in the back seat of this taxi, enjoying 45 minutes of quiet. You never know with taxis though.
Kovair
JANUARY 25, 2016
In our previous blog “Revolution of Testing”, we have discussed the importance of test automation in today’s application development lifecycle. In this blog, we will. The post Importance of Test Automation and How Kovair Supports It appeared first on Kovair Blog.
Nick Desaulniers
AUGUST 13, 2016
What was supposed to be one blog post about memory segmentation turned into what will be a series of posts. As the first in the series, we cover the extreme basics of object files and symbols. In follow up posts, I plan to talk about static libraries, dynamic libraries, dynamic linkage, memory segments, and finally memory usage accounting. I also cover command line tools for working with these notions, both in Linux and OSX.
All Things Distributed
DECEMBER 8, 2016
Earlier this year, Amazon Web Services (AWS) announced it would launch a new AWS infrastructure region in Montreal, Quebec. Today, I'm happy to share that the Canada (Central) Region is available for use by customers worldwide. The AWS Cloud now operates in 40 Availability Zones within 15 geographic regions around the world, with seven more Availability Zones and three more regions coming online in China, France, and the U.K. in the coming year.
SQL Server According to Bob
AUGUST 17, 2016
Have you encountered the following in your SQL Server error log? Long Sync IO: Scheduler 95 had 1 Sync IOs in nonpreemptive mode longer than 1000 ms. There are two general types of I/O performed by SQL Server. Async – Vast majority of SQL Server I/Os, as outlined in the provided link: [link]. Sync. The message I am blogging on today is of the Sync variety.
Alex Podelko
OCTOBER 13, 2016
I am looking forward to share my thoughts on ‘Reinventing Performance Testing’ at the imPACt performance and capacity conference by CMG held on November 7-10, 2016 in La Jolla, CA. I decided to publish a few parts here to see if anything triggers a discussion. It would be published as separate posts: – Introduction (a short teaser). – Cloud.
Uber Engineering
JANUARY 12, 2016
By Jakob Holdgaard Thomsen. The making of Schemaless, Uber Engineering’s custom designed datastore using MySQL, which has allowed us to scale from 2014 to beyond. This is part one of a three-part series on Schemaless. In Project Mezzanine we described … The post Designing Schemaless, Uber Engineering’s Scalable Datastore Using MySQL appeared first on Uber Engineering Blog.
The Polyglot Developer
SEPTEMBER 30, 2016
Not too long ago I released a time-based one-time password manager called OTP Safe to Google Play and iTunes. That particular application was built with Ionic Framework and I even wrote a tutorial explaining how to make a similar 2FA manager with Ionic 2. Being a hybrid mobile application, there were some performance limitations that came with the Ionic 2 application.
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